As reported in The National last week, Mr Hunt wants to build support for the United Nations Security Council to take action to bolster the UN-led peace process in Yemen, following a meeting with UN Special Envoy Martin Griffiths at the end of October.

Mr Hunt will also use his meetings to push for an investigation into Mr Khashoggi’s death, as well as raising the case of Matthew Hedges, the British academic accused of spying in the UAE.

Speaking of the situation in Yemen, the UK foreign secretary said: “The human cost of war in Yemen is incalculable: with millions displaced, famine and disease rife and years of bloodshed; the only solution is now a political decision to set aside arms and pursue peace.

“Britain has a unique position, both as pen-holder at the UN Security Council and as a key influencer in the region, so today I am travelling to the Gulf to demand that all sides commit to this process.

“We are witnessing a man-made humanitarian catastrophe on our watch: now is the window to make a difference, and to get behind both the UN peace process and current UK efforts in the Security Council.”

Talking of Mr Khashoggi, Mr Hunt said: “We encourage the Saudi authorities to co-operate fully with the Turkish investigation into his death, so that we deliver justice for his family and the watching world.”